[Bug sanitizer/65479] sanitizer stack trace missing frames past #0 on powerpc64

[wschmidt at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65479

--- Comment #15 from Bill Schmidt <wschmidt at gcc dot gnu.org> ---
Yes, it seems likely that this is due to this patch being missing from GCC 5.3:

http://reviews.llvm.org/D11552

The fix is present in trunk, so this should be fixed with a backport.